JP2012520430A - Centrifugal pendulum - Google Patents

Centrifugal pendulum Download PDF

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Publication number
JP2012520430A
JP2012520430A JP2012500062A JP2012500062A JP2012520430A JP 2012520430 A JP2012520430 A JP 2012520430A JP 2012500062 A JP2012500062 A JP 2012500062A JP 2012500062 A JP2012500062 A JP 2012500062A JP 2012520430 A JP2012520430 A JP 2012520430A
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Prior art keywords
dynamic vibration
pendulum
vibration absorber
absorber mass
mass body
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Granted
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JP2012500062A
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Japanese (ja)
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JP5460849B2 (en
Inventor
ヒューゲル クリスティアン
Original Assignee
シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトSchaeffler Technologies GmbH & Co. KG
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Priority to DE102009013403 priority
Application filed by シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトSchaeffler Technologies GmbH & Co. KG filed Critical シェフラー テクノロジーズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトSchaeffler Technologies GmbH & Co. KG
Priority to PCT/DE2010/000217 priority patent/WO2010105589A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2121Flywheel, motion smoothing-type
    • Y10T74/2128Damping using swinging masses, e.g., pendulum type, etc.

Abstract

  The present invention particularly relates to a centrifugal pendulum (1) for placement in a power train of an automobile, and a pendulum flange (2) that rotates about a rotation axis, and the pendulum flange (2) spans a circumferential surface. A plurality of dynamic vibration absorber mass bodies (6) arranged, and the two dynamic vibration absorber mass bodies (6) facing the side surface of the pendulum flange are joined to each other by a bar (9). Thus, the dynamic vibration absorber mass body pair (8) is formed. The bar (9) penetrates and engages the pendulum flange opening (3). The pendulum flange is provided with a cutout (4) for mounting the dynamic vibration absorber mass body. In order to optimize the peripheral surface of the pendulum flange for accommodating openings and cutouts, adjacent bars of two adjacent dynamic vibration absorber mass pairs are guided through a single opening.

Description

  The present invention relates to a centrifugal pendulum provided with a pendulum flange and a dynamic vibration absorber mass body that is arranged on both sides of the pendulum flange, is distributed over the circumferential surface and is restricted with respect to the pendulum flange and is capable of turning. .

  The manner of operation when a centrifugal pendulum is used as a torsional vibration dynamic vibration absorber, in particular in the power train of a motor vehicle, is known from DE 102004011830. In this specification, the dynamic vibration absorber mass body is limited to the pendulum flange and is disposed so as to be able to turn. The pendulum flange is driven by a drive unit such as an internal combustion engine with torsional vibration. Based on the pendulum motion of the dynamic vibration absorber mass with respect to the pendulum flange, which is generated by the different rotational accelerations of the pendulum flange, a torsional vibration absorbing action is provided.

  In this configuration, a dynamic vibration absorber mass body may be disposed on both sides of the pendulum flange. The dynamic vibration absorber mass bodies opposed to each other in the axial direction can be joined to each other via a bar to form a dynamic vibration absorber mass body pair. The bar moves in an opening that matches the pendulum movement path of the dynamic absorber mass pair with respect to shape. Guidance of the dynamic vibration absorber mass body pair in the pendulum flange is performed by cutting out the dynamic vibration absorber mass body pair. This cutout is formed complementary to the cutout in the pendulum flange, and the rolling element rolls in these cutouts. Thereby, the opening and the cutout which are closely aligned with each other are arranged over the peripheral surface of the pendulum flange, and the swing angle of the dynamic vibration absorber mass body pair is limited. At the same time, the stable guidance of the dynamic vibration absorber mass body pair in the pendulum flange is based on the distance between the support portions of the dynamic vibration absorber mass body by the rolling elements in the cutout of the pendulum flange.

  Therefore, the object of the present invention is to increase the distance between the support portions of the dynamic vibration absorber mass body pair in the circumferential direction when the swing angle is the same as that in the prior art, and / or It is another object of the present invention to provide a centrifugal pendulum for a power train or a power train equipped with the centrifugal pendulum capable of expanding the swing angle in the same case.

  The above object is a centrifugal force including a dynamic vibration absorber mass body that is limited and movable in a pendulum flange that rotates about a rotation axis, and that is disposed on both sides of the pendulum flange over a circumferential surface. Achieved by pendulum. In this configuration, the dynamic vibration absorber masses opposed to each other in the pendulum flange are joined to each other via a bar to form a dynamic vibration absorber mass body pair. A bar penetrates and engages an opening cut out from the pendulum flange, and at least one opening accommodates two bars of different dynamic absorber mass pairs. By accommodating two bars in one opening, the intermediate region provided between the openings can be reduced for reasons of stabilization of the pendulum flange and for manufacturing reasons. Depending on the material thickness, this intermediate area may be several millimeters, for example 6 millimeters, for a 4 millimeter thick pendulum flange. The reduced intermediate area can be used for the relatively large spacing of the cutouts in the circumferential direction while properly distributing the cutouts for the support of the dynamic damper mass pairs. Alternatively, the cutout can be cut wider in the circumferential direction, and a relatively large swing angle can be set. Depending on the requirements for vibration damping, a suitable mixing shape can be provided with a partially enlarged swing angle and a partially large spacing of cutouts to accommodate rolling elements. Since the bar can be formed by rivets, the dynamic vibration absorber masses facing each other in the axial direction are riveted by at least two rivets arranged on the end side in the circumferential direction. The configuration of the opening may be formed such that at least a part of the cut-out surface is traveled by two bars during movement of the dynamic vibration absorber mass pair. In this configuration, when a plurality of dynamic vibration absorber mass pairs move in the same manner due to the cutout travel path for the rolling elements in the pendulum flange and the dynamic vibration absorber mass body, Contact is eliminated.

  According to an advantageous configuration, the two bars of the two dynamic vibration absorber mass bodies which are arranged next to one another in the circumferential direction are accommodated in a single opening. This only opening forms a semicircular cutout which is preferably open radially inward in order to minimize the mass to be cut out. This cutout substantially corresponds to the traveling path of the bar during turning. This shape is substantially defined by the shape of the cutout in the pendulum flange and the dynamic vibration absorber mass body. The shape of this cutout is adapted to the vibration path of the dynamic absorber mass for the pendulum flange that is arranged for the vibration absorption process. In this configuration, the path of the dynamic vibration absorber mass body is defined in the radial direction and the circumferential direction by the corresponding extension of the cutout and the inclination of the cutout, so that a rolling element stopper is not provided at the cutout defining portion. Or, at best, it is provided for defining the swivel range of the dynamic absorber mass relative to the pendulum flange.

  According to another advantageous configuration, the dynamic vibration absorber mass body is formed on a pair of dynamic vibration absorber mass bodies adjacent to each other in the circumferential direction so as to overlap in the radial direction according to the movement state relative to the pendulum flange. Furthermore, it has been found advantageous if the circumferentially adjacent openings and cutouts in the pendulum flange have a spacing of 1.5 times the thickness of the pendulum flange. Due to the above-mentioned spacing of the intermediate region between the opening and the cutout, the opening and the hole can be optimized and at the same time a stable arrangement. In this configuration, it is not necessary to expand the cutout in the circumferential direction necessary for adjusting the swing angle or reduce the cutout interval necessary for stabilizing the dynamic vibration absorber mass pair.

  The centrifugal pendulum according to the present invention is used in a power train of an automobile. Therefore, in order to achieve the above object, a power train including a drive unit and a transmission in an automobile is provided. In this power train, the centrifugal pendulum having the characteristics according to the present invention is disposed between the drive unit and the transmission device. In the present invention, the centrifugal pendulum can be used in connection with a single-stage or multi-stage torsional vibration damper. It has proved advantageous if the centrifugal pendulum is arranged parallel to the damper stage and is integrated, for example, in a torsional vibration damper. In this configuration, the centrifugal pendulum may be contained within the casing of the hydrodynamic torque converter, either by itself or in combination with a torsional vibration damper. In this configuration, a torsional vibration damper having a centrifugal pendulum may be provided in one function as a double mass flywheel or a divided flywheel. It is obvious that the double mass flywheel can be used in connection with dry clutches and wet clutches, and that the dry and wet clutch configurations can also be used, for example, as twin clutches for twin clutch transmissions. .

It is a figure which shows a part of pendulum flange based on a prior art. It is a figure which shows a part of pendulum flange which concerns on this invention. FIG. 4 is a diagram showing a portion of a pendulum flange and an enlarged spacing of a plurality of cutouts for accommodating a dynamic vibration absorber mass. It is a figure which shows a part of pendulum flange, the expanded space | interval of several notches for accommodating a dynamic vibration damper mass body, and the expansion part of these notches. It is a figure which shows a part of centrifugal force pendulum in an intermediate position. FIG. 6 is a diagram showing a part of the centrifugal pendulum shown in FIG. 5 in a displaced state.

  The present invention will be described in detail based on the embodiment shown in FIGS.

  FIG. 1 shows a pendulum flange 2a of a centrifugal pendulum based on the prior art. In the prior art, an opening 3b for a rod that connects two dynamic vibration absorber masses that are spaced apart in the axial direction and that are respectively disposed on the side surfaces of the pendulum flange 2a to form a vibration absorber mass body pair; 3c and 3d are provided. Each bar, for example a rivet for riveting two dynamic vibration absorber masses, penetrates and engages each of the openings 3b, 3c, 3d. The shapes of the openings 3b, 3c, 3d are defined by the possible paths of the dynamic vibration absorber mass body pair during rotation of the dynamic vibration absorber mass body relative to the pendulum flange 2a. This path is defined by the cutout 4a and the cutouts provided in the dynamic vibration absorber mass body. A rolling element rolls in the cutout which each of the cutout 4a and a dynamic vibration damper mass body opposes. The openings 3b 'and 3d' are through-engaging portions for the bars of adjacent dynamic vibration absorber mass pairs.

  For reasons of stabilization of the pendulum flange 2a, it is necessary to hold the intermediate region 5a between the cutout 4a and the openings 3b, 3c, 3d, and between the openings 3b, 3b 'or 3d, 3d' It is necessary to hold 5b. In a predetermined number of dynamic vibration absorber mass pairs, the swing angle affected by the width of the cutout 4a and the stable accommodation of the dynamic vibration absorber mass body or dynamic vibration absorber mass pair in the pendulum flange are affected. The interval between the cutouts 4a in the circumferential direction is set. Since the diameter that defines the dimensions of the intermediate regions 5a and 5b, that is, the width of the pendulum flange 2a, is defined, the centrifugal pendulum is applied to the accommodation capacity of the pendulum flange 2a that is defined by the swing angle and the interval between the cutouts 4a. It can no longer be expanded.

  FIG. 2 shows a pendulum flange 2 according to the present invention. In this embodiment, the opening 3 is formed in a semicircular shape. These openings 3 substantially correspond to the openings 3b, 3b 'and 3d, 3d' shown in FIG. The openings 3b, 3b 'and 3d, 3d' are partially overlapped and combined to form the opening 3. Not only can the intermediate region 5b shown in FIG. It is also possible for the bar to pass at least partially through the path of the bar of the matching dynamic absorber mass body pair. In the present embodiment, when the position of the bar is appropriately corrected, the intermediate region 5 widened in the circumferential direction by the opening 3 based on space saving is provided. These intermediate regions 5 allow the relatively stable centrifugal pendulum of the relatively stable centrifugal pendulum to be moved and / or widened appropriately in the position shown in FIG. 1 for ease of explanation in FIG. Embodiments and / or embodiments of centrifugal pendulums with relatively large swing angles are possible.

  3 and 4 show suitable embodiments of the improved pendulum flanges 2b and 2c. In the pendulum flange 2b of FIG. 3, the cutouts 4 are further separated from each other as compared with the positions of the cutouts 4a of FIGS. These cutouts 4 enable a stable attachment of the dynamic vibration absorber mass pair. The pendulum flange 2c has cutouts 4b that are wider than the cutouts 4a shown in FIGS. As a result, stable mounting and a large swing angle of the dynamic vibration absorber mass body pair can be realized. Depending on this embodiment, the end of the opening 3 is adapted to the large swing angle that results in a wide swivel angle of the bar.

  FIG. 5 shows a part of a centrifugal pendulum provided with a pendulum flange 2b. Similarly, pendulum flanges with different spacing and / or different widths of the pendulum flange 2c or cutout 4 of FIG. 4 can be used. The dynamic damper mass bodies 6, 6a, 7, 7a, which are arranged on both sides of the pendulum flange 2b and distributed over the circumferential surface, comprise a plurality of, preferably four, motions distributed over the circumferential surface. A pair of absorber mass bodies 8, 8a, 8b is formed. These dynamic vibration absorber mass body pairs 8, 8a, 8b are joined to each other by rods 9, 9a, for example, rivets. In this embodiment, the bar 9 penetrates through and engages with the opening 3, and the bar 9a penetrates through and engages with the opening shown as the opening 3c in FIG. Two dynamic vibration absorber mass pairs, for example, the bars 9 adjacent to the dynamic vibration absorber mass pairs 8 and 8a, respectively, move in the opening 3 when the dynamic vibration absorber mass pairs 8 and 8a turn. As can be seen, the dynamic absorber mass in front of the left dynamic absorber mass pair is not shown.

  The rolling element 10 guides and supports the dynamic vibration absorber mass body pair 8, 8a, 8b with respect to the pendulum flange 2b. These rolling elements 10 also roll in the pendulum flange cutout 4 and also in the cutouts processed in the same manner in the dynamic damper mass bodies 6 and 6a joined to each other in the axial direction. By combining the two contours of the cutouts 4 and 11, a dynamic vibration absorption function is provided along with a turning path of the dynamic vibration absorber mass body. The centrifugal pendulum 1 is shown in an intermediate position, for example in a state where the drive unit is stopped.

  FIG. 6 shows the centrifugal pendulum 1 shown in FIG. 5 in a completely displaced state, for example, in a state where a torque peak is being compensated. The dynamic vibration absorber masses 6, 6a and 7b (illustrated on the left front dynamic vibration absorber mass body) shown in FIG. 6 are moved by the rolling elements 10 along the cutouts 4 and 11, and overlap each other in the radius. is doing. In the present embodiment, the bars 9 of the adjacent dynamic vibration absorber mass body pairs move without colliding in the appropriately cut out opening 3.

  1 Centrifugal pendulum, 2 Pendulum flange, 2a Pendulum flange, 2b Pendulum flange, 2c Pendulum flange, 3 opening, 3a opening, 3b opening, 3b ′ opening, 3c opening, 3d opening, 3d ′ opening, 4 cutout, 4a cutout, 4b cutout, 5 intermediate region, 5a intermediate region, 5b intermediate region, 6 dynamic vibration absorber mass body, 6a dynamic vibration absorber mass body, 7 dynamic vibration absorber mass body, 7a dynamic vibration absorber mass body, 7b dynamic vibration absorber mass body, 8 dynamic vibration absorber mass body pair, 8a dynamic vibration absorber mass body pair, 8b dynamic vibration absorber mass body pair, 9 bar material, 9a bar material, 10 rolling element, 11 cutout

Claims (10)

  1. The pendulum flanges (2, 2b, 2c) that rotate about the rotation axis are limited and movable, and are arranged on both sides of the pendulum flanges (2, 2b, 2c) over the circumferential surface. The dynamic vibration absorber mass body (6, 6a, 7, 7a, 7b) is provided, and the dynamic vibration absorber mass body (6, 6a, 7, 7a) opposed to the pendulum flange (2, 2b, 2c). , 7b) are joined to each other by a bar (9, 9a) to form a dynamic vibration absorber mass body pair (8, 8a, 8b). The bar (9, 9a) is a pendulum flange (2 , 2b, 2c) in the centrifugal pendulum (1), penetrating through and engaging the openings (3, 3c)
    The centrifugal pendulum is characterized in that at least one of the openings (3) accommodates the two bars (9) of different dynamic vibration absorber mass bodies (8, 8a, 8b).
  2.   The two rod members (9) adjacent to each other in the circumferential direction of the two dynamic vibration damper mass body pairs (8, 8a, 8b) are accommodated in one opening (3), respectively. The centrifugal pendulum according to claim 1.
  3.   3. Centrifugal pendulum according to claim 1 or 2, characterized in that the opening (3) forms a semicircular cutout opening radially inward.
  4.   The dynamic vibration absorber mass body pair (8, 8a, 8b) is limited in the circumferential direction and movable in the radial direction with respect to the pendulum flange (2, 2b, 2c). The centrifugal pendulum according to any one of claims 1 to 3.
  5.   The dynamic vibration absorber mass bodies (6, 6a, 7, 7a, 7b) of the dynamic vibration absorber mass body pairs (8, 8a, 8b) adjacent to each other in the circumferential direction are mutually connected to the pendulum flanges (2, 2b, 2c). 5. The centrifugal pendulum according to claim 4, wherein the centrifugal pendulum is superimposed in a radial direction based on a movement state with respect to ().
  6.   The dynamic vibration absorber mass body (6, 6a, 7, 7a, 7b) of one dynamic vibration absorber mass body pair (8, 8a, 8b) has at least two cutouts (11) aligned with each other. The rolling element (10) rolls in the cutout (11), and the rolling element (10) rolls in the corresponding cutout (4) of the pendulum flange (2, 2b, 2c). The centrifugal pendulum according to any one of claims 1 to 5, wherein
  7.   In the pendulum flange (2, 2b, 2c), the circumferentially adjacent opening (3, 3c) and the cutout (4) are 1.5 times the width of the pendulum flange (2, 2b, 2c). The centrifugal pendulum according to claim 6, wherein the centrifugal pendulum has an interval.
  8.   A hydrodynamic torque converter comprising a centrifugal pendulum (1) according to any one of claims 1 to 7, which is housed in a casing of the torque converter. Hydrodynamic torque converter.
  9.   The hydrodynamic torque converter according to claim 8, characterized in that the centrifugal pendulum (1) is arranged parallel to the torsional vibration damper or is a component of the torsional vibration damper. .
  10.   A double mass flywheel, characterized in that it comprises the centrifugal pendulum (1) according to claim 1.
JP2012500062A 2009-03-16 2010-02-26 Centrifugal pendulum Active JP5460849B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102009013403.4 2009-03-16
DE102009013403 2009-03-16
PCT/DE2010/000217 WO2010105589A1 (en) 2009-03-16 2010-02-26 Centrifugal force pendulum

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JP2012520430A true JP2012520430A (en) 2012-09-06
JP5460849B2 JP5460849B2 (en) 2014-04-02

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US (1) US20120055281A1 (en)
JP (1) JP5460849B2 (en)
CN (1) CN102439329B (en)
DE (2) DE112010001152B4 (en)
WO (1) WO2010105589A1 (en)

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JP5460849B2 (en) 2014-04-02
CN102439329B (en) 2015-03-25
WO2010105589A1 (en) 2010-09-23
CN102439329A (en) 2012-05-02
US20120055281A1 (en) 2012-03-08
DE112010001152A5 (en) 2012-07-12
DE112010001152B4 (en) 2018-11-15

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